The fate of the Johnston's captain was never conclusively established, and remains the subject of continuing conjecture among the ship's survivors. Some claim that he was hit by Japanese naval shellfire; others that he was able to jump into a damaged motor whaleboat. What is known is that he was seriously wounded during the battle; that he lived long enough to give the abandon ship order; and that he was not among those rescued. Evans posthumously was awarded the Medal of Honor for his material contribution to the decisive victory won in Leyte Gulf and shared in the Presidential Unit Citation awarded his group for this action in which he gave his life.

When the Japanese fleet during the Battle off Samar was first sighted, Evans did not hesitate and his ship immediately headed directly towards the far superior enemy. He is reported to have told his crew over the ship's intercom: "A large Japanese fleet has been contacted. They are fifteen miles away and headed in our direction. They are believed to have four battleships, eight cruisers, and a number of destroyers. This will be a fight against overwhelming odds from which survival cannot be expected. We will do what damage we can." The last portion of the quote ("This will be ... damage we can.") is usually credited to LCDR Robert W. Copeland of the USS Samuel B. Roberts (DE-413), who charged in with Evans.

In 1955, the destroyer escortUSS Evans (DE-1023) was named in his honor.[1] It was decommissioned in 1968, and no active ship carries the name of the Evans or the Johnston, although a number of active ships have been named for the Samuel B Roberts and her crew. On November 12, 2013, a petition was created to name a ship after Evans.[2]

For conspicuous gallantry and intrepidity at the risk of his life above and beyond the call of duty as commanding officer of the U.S.S. Johnston in action against major units of the enemy Japanese fleet during the battle off Samar on 25 October 1944. The first to lay a smokescreen and to open fire as an enemy task force, vastly superior in number, firepower and armor, rapidly approached. Comdr. Evans gallantly diverted the powerful blasts of hostile guns from the lightly armed and armored carriers under his protection, launching the first torpedo attack when the Johnston came under straddling Japanese shellfire. Undaunted by damage sustained under the terrific volume of fire, he unhesitatingly joined others of his group to provide fire support during subsequent torpedo attacks against the Japanese and, outshooting and outmaneuvering the enemy as he consistently interposed his vessel between the hostile fleet units and our carriers despite the crippling loss of engine power and communications with steering aft, shifted command to the fantail, shouted steering orders through an open hatch to men turning the rudder by hand and battled furiously until the Johnston, burning and shuddering from a mortal blow, lay dead in the water after 3 hours of fierce combat. Seriously wounded early in the engagement, Comdr. Evans, by his indomitable courage and brilliant professional skill, aided materially in turning back the enemy during a critical phase of the action. His valiant fighting spirit throughout this historic battle will venture as an inspiration to all who served with him.